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NCT01010061 · OUTCOME

Percentage of Participants With Molecular Remission at the End of Treatment

CLL11: A Study of Obinutuzumab (RO5072759 [GA101]) With Chlorambucil in Patients With Previously Untreated Chronic Lymphocytic Leukemia (Stage 1a) · Source last updated 2018-09-14

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
NUMBER
Unit
Percentage of participants
Interval / dispersion
95% Confidence Interval
Time frame
Randomization to clinical cutoff date of 10 Oct 2017 (median observation 62.5 months from randomization)

What was measured

Molecular remission was defined as a minimal residual disease (MRD)-negative result at the end of treatment (assessment that occurred between 56 days and 6 months of last treatment). Molecular remission was assessed for all patients using a blood sample. Additionally, a bone marrow sample was obtained from patients whom the investigator assumed to have a complete response, consistent with the IWCLL guidelines. A combined analysis of blood and bone marrow results was conducted. A patient was considered MRD negative if result was less than 1 chronic lymphocytic leukemia (CLL) cell in 10000 leukocytes (MRD value \< 0.0001) based on the method of allele specific polymerase chain reaction (ASO-PCR).

Analysis population: Participants from the Intent-to-treat population (all randomized participants) with data available for analysis. Participants who did not reach the 3 month Follow-up visit at the time of the clinical cutoff are excluded.

Groups in this outcome

Obinutuzumab + Chlorambucil (GClb)

Participants received 1000 mg obinutuzumab intravenous (IV) infusion, on Days 1 \[first infusion split 100 mg on Day 1 and 900 mg on Day 2 as per protocol amendment\], 8 and 15 in Cycle 1 and Day 1 in Cycles 2-6 (28-day cycles) plus chlorambucil 0.5 mg/kg orally on Day 1 and 15 of each 28-day cycle (6 Cycles).

Chlorambucil (Clb)

Participants received chlorambucil 0.5 mg/kg orally on Day 1 and 15 of each 28-day cycle (6 Cycles). Participants with Progressive Disease or within 6 months of follow-up were allowed to cross over to receive obinutuzumab + chlorambucil.

Group identifiers and denominators belong to this outcome only. They may differ in another outcome or in safety reporting.

Analysis denominator · Participants

GroupSource count
Obinutuzumab + Chlorambucil (GClb)166
Chlorambucil (Clb)90

Reported measurements

Source class 1
Values in Percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Obinutuzumab + Chlorambucil (GClb)25Not reported18.932.6Not reported
Chlorambucil (Clb)0Not reported0.04.0Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        18.9
        upper Limit
        32.6
        value
        25
      2. group Id
        OG001
        lower Limit
        0.0
        upper Limit
        4.0
        value
        0
denoms
  1. counts
    1. group Id
      OG000
      value
      166
    2. group Id
      OG001
      value
      90
    units
    Participants
description
Molecular remission was defined as a minimal residual disease (MRD)-negative result at the end of treatment (assessment that occurred between 56 days and 6 months of last treatment). Molecular remission was assessed for all patients using a blood sample. Additionally, a bone marrow sample was obtained from patients whom the investigator assumed to have a complete response, consistent with the IWCLL guidelines. A combined analysis of blood and bone marrow results was conducted. A patient was considered MRD negative if result was less than 1 chronic lymphocytic leukemia (CLL) cell in 10000 leukocytes (MRD value \< 0.0001) based on the method of allele specific polymerase chain reaction (ASO-PCR).
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received 1000 mg obinutuzumab intravenous (IV) infusion, on Days 1 \[first infusion split 100 mg on Day 1 and 900 mg on Day 2 as per protocol amendment\], 8 and 15 in Cycle 1 and Day 1 in Cycles 2-6 (28-day cycles) plus chlorambucil 0.5 mg/kg orally on Day 1 and 15 of each 28-day cycle (6 Cycles).
    id
    OG000
    title
    Obinutuzumab + Chlorambucil (GClb)
  2. description
    Participants received chlorambucil 0.5 mg/kg orally on Day 1 and 15 of each 28-day cycle (6 Cycles). Participants with Progressive Disease or within 6 months of follow-up were allowed to cross over to receive obinutuzumab + chlorambucil.
    id
    OG001
    title
    Chlorambucil (Clb)
param Type
NUMBER
population Description
Participants from the Intent-to-treat population (all randomized participants) with data available for analysis. Participants who did not reach the 3 month Follow-up visit at the time of the clinical cutoff are excluded.
reporting Status
POSTED
time Frame
Randomization to clinical cutoff date of 10 Oct 2017 (median observation 62.5 months from randomization)
title
Percentage of Participants With Molecular Remission at the End of Treatment
type
SECONDARY
unit Of Measure
Percentage of participants

Download exact source JSON → · Snapshot ctgov-results-191f4516d4760045304b24a0

Preserved source evidence · Not medical advice